Programme two: Planet Earth - Great Plains . The vast open wildernesses of African savannah, Asian steppe, Arctic tundra and North American prairie are the great plains of the planet.

But in parts of the Midwest and Great Plains, they're heating up the earth as woodlands take over grasslands. It’s Environment 101: Trees help save the planet. But not everywhere.

Measurement of the Thickness of the Earth's Crust in the Albertan Plains of Western Canada T. C. RICHARDS 1 Nature volume 182 , pages 384–385 ( 1958 ) Cite this article ...

Mr. Vaughan is a freelance journalist and a native of Nebraska who writes frequently about the Great Plains. He is the author of “Zoo Nebraska: The Dismantling of an American Dream.” One ...